<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        // repeat(n) 表示将原字符串重复n次 返回一个新字符串
        let newstr = 'x'.repeat(10)
        console.log(newstr);
    </script>
</body>

</html>